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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/installer/setup/update_active_setup_version_work_item.h" |
| 6 |
| 7 #include <stdint.h> |
| 8 |
| 9 #include <vector> |
| 10 |
| 11 #include "base/bind.h" |
| 12 #include "base/logging.h" |
| 13 #include "base/strings/string_number_conversions.h" |
| 14 #include "base/strings/string_split.h" |
| 15 #include "base/strings/string_util.h" |
| 16 |
| 17 namespace { |
| 18 |
| 19 // The major version and first component of the version identifying the work |
| 20 // done by setup.exe --configure-user-settings on user login by way of Active |
| 21 // Setup. Increase this value if the work done when handling Active Setup |
| 22 // should be executed again for all existing users. |
| 23 const base::char16 kActiveSetupMajorVersion[] = L"43"; |
| 24 |
| 25 } // namespace |
| 26 |
| 27 UpdateActiveSetupVersionWorkItem::UpdateActiveSetupVersionWorkItem( |
| 28 const base::string16& active_setup_path, |
| 29 Operation operation) |
| 30 : set_reg_value_work_item_( |
| 31 HKEY_LOCAL_MACHINE, |
| 32 active_setup_path, |
| 33 WorkItem::kWow64Default, |
| 34 L"Version", |
| 35 base::Bind( |
| 36 &UpdateActiveSetupVersionWorkItem::GetUpdatedActiveSetupVersion, |
| 37 base::Unretained(this))), |
| 38 operation_(operation) { |
| 39 } |
| 40 |
| 41 bool UpdateActiveSetupVersionWorkItem::Do() { |
| 42 return set_reg_value_work_item_.Do(); |
| 43 } |
| 44 |
| 45 void UpdateActiveSetupVersionWorkItem::Rollback() { |
| 46 set_reg_value_work_item_.Rollback(); |
| 47 } |
| 48 |
| 49 base::string16 UpdateActiveSetupVersionWorkItem::GetUpdatedActiveSetupVersion( |
| 50 const base::string16& existing_version) { |
| 51 std::vector<base::string16> version_components = base::SplitString( |
| 52 existing_version, L",", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY); |
| 53 |
| 54 // If |existing_version| was empty or otherwise corrupted, turn it into a |
| 55 // valid one. |
| 56 if (version_components.size() != 4U) |
| 57 version_components.assign(4U, L"0"); |
| 58 |
| 59 // Unconditionally update the major version. |
| 60 version_components[MAJOR] = kActiveSetupMajorVersion; |
| 61 |
| 62 if (operation_ == UPDATE_AND_BUMP_OS_UPGRADES_COMPONENT) { |
| 63 uint32_t previous_value; |
| 64 if (!base::StringToUint(version_components[OS_UPGRADES], &previous_value)) { |
| 65 LOG(WARNING) << "Couldn't process previous OS_UPGRADES Active Setup " |
| 66 "version component: " << version_components[OS_UPGRADES]; |
| 67 previous_value = 0; |
| 68 } |
| 69 version_components[OS_UPGRADES] = base::UintToString16(previous_value + 1); |
| 70 } |
| 71 |
| 72 return JoinString(version_components, L','); |
| 73 } |
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